[MacPorts] #63941: nmap: clarify licensing situation

[MacPorts]

#63941: nmap: clarify licensing situation
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  Reporter:  danchr  |      Owner:  danielluke
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  nmap    |
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Comment (by jmroot):

 Replying to [ticket:63941 danchr]:
 > In short, I think the licence should be changed to
 `Restrictive/Distributable`.

 It think it would be more accurate to say `GPL-2
 Restrictive/Distributable`, since it presumably still conflicts with
 everything that the GPL does. `Restrictive/Distributable` is only
 considered to conflict with the various GPL flavours.

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Ticket URL: <https://trac.macports.org/ticket/63941#comment:5>
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